Checked Google News - came up with http://www.channel3000.com/news/8144223/detail.html which said "The FAA did not know the fate of the passengers, but Springfield, Mo., radio station KTTS reported that the Taney County sheriff said that all four passengers were dead."
"Molinaro said the plane took off from Point Lookout around 12:30 p.m. and was headed to Lubbock, Texas, when the pilot reported some kind of difficultly and tried to return to the airport."